Seaport Entertainment former officer proposes $282K sale

The notice reports 12,809,536 SEG shares outstanding as of October 6, 2026.

Rhea-AI Filing Summary

Seaport Entertainment Group Inc. (SEG) has a Form 144 notice for former officer Luciana Fato’s proposed sale of 12,534 common shares through Fidelity Brokerage Services LLC. The notice lists an aggregate market value of $281,792.65 and an approximate sale date of October 6, 2026. The listed acquisition history identifies restricted stock vesting.

Key Figures

Common shares proposed for sale: 12,534 shares Aggregate market value: $281,792.65 Shares outstanding: 12,809,536 shares +4 more

7 metrics

Common shares proposed for sale 12,534 shares Approximate sale date: October 6, 2026

Aggregate market value $281,792.65 For the common shares proposed for sale

Shares outstanding 12,809,536 shares As of October 6, 2026

Shares from restricted stock vesting 1,614 shares August 1, 2025

Shares from restricted stock vesting 880 shares March 7, 2026

Shares from restricted stock vesting 1,614 shares August 1, 2026

Shares from restricted stock vesting 8,426 shares September 2, 2026

Key Terms

Rule 144, Restricted Stock Vesting, attorney-in-fact

3 terms

Rule 144 regulatory

"sales required by paragraph (e) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Vesting financial

"Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

attorney-in-fact regulatory

"as attorney-in-fact for Luciana Fato"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many SEG shares does former officer Luciana Fato propose to sell?

Luciana Fato’s notice covers 12,534 common shares, with an aggregate market value of $281,792.65 and an approximate sale date of October 6, 2026.

How were Luciana Fato’s SEG shares acquired?

The reported acquisition entries identify restricted stock vesting on August 1, 2025 (1,614 shares), March 7, 2026 (880 shares), August 1, 2026 (1,614 shares), and September 2, 2026 (8,426 shares).

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/06/2026 - 04:28 PM Accepted by SEC EDGAR 10/06/2026 - 04:28 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001615708
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Seaport Entertainment Group Inc.
SEC File Number	001-42113
Address of Issuer	THE SEAPORT, 199 WATER STREET 28TH FLOOR NEW YORK NEW YORK 10038
Phone	(212) 732-8257
Name of Person for Whose Account the Securities are To Be Sold	Fato Luciana
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	12534	281792.65	12809536	10/06/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/01/2025	Restricted Stock Vesting	Issuer			1614	08/01/2025	Compensation
Common	03/07/2026	Restricted Stock Vesting	Issuer			880	03/07/2026	Compensation
Common	08/01/2026	Restricted Stock Vesting	Issuer			1614	08/01/2026	Compensation
Common	09/02/2026	Restricted Stock Vesting	Issuer			8426	09/02/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	10/06/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Luciana Fato
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)